So my slash started slipping really bad and I thought maybe I had blow up the spur gear cause itís plastic but no itís perfectly fine then I took the whole rear and apart to fine that the diff is fine and did more research and found out that it was the layshaft but is it worth it to go and get a stock one or a strc one and run ae slipper clutch stuff and also when I check my layshaft the pin was not out of place or broken it looked just fine so what could that be